“Z”型叠加煤柱区域冲击地压综合防治技术

Integrated Rock Burst Control Technology for the Area of of Coal Pillar "Z"-type Superposition

煤柱是产生应力集中的区域,不仅对本煤层开采有影响,还会对相邻煤层的应力条件构成影响,导致应力叠加。通过综合分析常村煤矿"Z"型叠加煤柱区域工作面冲击地压危险性,借助电磁辐射和微震监测进行有效预测预警,并采取煤层注水、钻孔卸压等冲击地压防治措施,实现了工作面安全顺利回采,取得了良好的经济和社会效益。

Coal pillar is the location of stress concentration.It has not only influenced the coal seam mining,but also influenced the stress condition of the adjacent coal seam,which results in stress superposition.Through comprehensive analysis on rock burst hazard of coal pillar working face in Changcun Coal Mine ' Z' superposition area,and in connection with electromagnetic radiation and microseismic monitoring,additionally,coal seam water injection,drilling and other rock burst prevention measures were also carried out.It achieved safety mining in working face successfully and has gained good economic and social benefits.